Locomotive or other boiler



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0 T H E R B I L E Rl Patented Mar. 9, 1897.

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INGRAHAM. LOCOMOTIVE 0R OTHER BOILER.

No. 578,674. Patented Mar. 9, 1897.

UNITED STATES PATENT OEEICE.

EDMUND INGRAI-IAM, F PHILADELPHIA, PENNSYLVANIA.

vLOVCOVIOTIVE OR OTH ER BOILER.

SPECIFICATION forming part of Letters Patent No. 578,674, dated March 9, 1897.

' Application nea rune 22,1896. serai No. 596,441. or@ moda.)

To all whom it may concern/f Be it known that I, EDMUND INGRAHAM, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and Stateiof Pennsylvania, have invented certain new and useful Improvements in Locomotive or other Boilers, of which the following is a specification.

Thisinvention relates to a new and useful improvement in locomotive and other boilers, and has for its object to provide devices for such -boilers whereby the feeding-water will be heated in its passage from the tender to the injector or pump, and also to increase the surface exposed to the heating products of combustion before the latter are expelled to the air without in any way interfering with the draft o r increasing the combustion of fuel.

With these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth, and.

then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, its construction and operation will now be described in detail, referring to the accompanying drawings, forming a part of this specification, in which- Figure 1 is a side elevation of a boiler built in accordance with this improvement; Fig. 2,

a plan view of the same; Fig. 3, a rear view;

Fig. 4, a section at the line m a: of Fig. 3, and Fig. 5 a section at the line y y of Fig. 1.

Referring to the drawings in detail, 1 represents the boiler proper, which may be of the usual construction used for locomotives, and the upper portion thereof is inclosed by a casing 2, which forms a jacket, into which -the exhaust-steam may be admitted when leaving the cylinders by means of the pipes 3. To this jacket is led the pipe 4:, which is then connected to the coil of pipe 5, running back and forth within the jacket, thereby exposing a large amount of surface to the interior thereof, and the opposite end of this coil is connected by the pipe 6 to the injector or pump 7, by means of which the feed-water is forced within the boiler in the usual manner, so that it will be seen that when the exhaust is admitted to the coil-chamber formed by the jacket 2 the heat therein will be absorbed by the coil and in turn transmitted to the feedwater within said coil, thus raising the temperature of said water, and, as is well understood,'this will greatly increase the steam capacity of a boiler consuming a given amount of fuel. The exhaust after gaining access to the interior of the jacket 2 is led therefrom by the pipe S, which latter may thereafter pass rearward through the pipe to the Watertank Within the tender, thereby imparting a certain amount of heat to the water within said tank and from thence to the several cars of the train and be utilized for heating purposes in the well-known manner.

The advantage gained by the exhausting of the steam within a coil and leading it through the water-tank and to the cars for heating purposes is that a large amount of heat is absorbed therefromby which the steam is condensed, thus relieving the pistons working within the cylinders of the back pressure, which is incident to the exhausting of the steam from said cylinders to the atmosphere, as it will be readily understood that the coil and pipes leading therefrom will act as a partial condenser; and another advantage is that the exhaust having no direct communication with the draft the latter may be better regulated and caused to act more uniformly upon the re 'than would otherwise be the case; also, since the exhaust is projecting horizontally from the cylinders instead of vertically within the smoke chamber and stack less wear and tear is had upon these parts of l[he locomotive. j

The smoke-chamber 9 is connected with the vinterior of the jacket 10, which latter surrounds the lower portion of the boiler from the front end thereof to the fire-box, and within this jacket is located a series of pipes 1l, having upturned ends, which are connected with the lower portion of the boiler, their opposite ends being connected to the receiving-tank 12, said tank being placed against the forward wall of the fire-box, as

clearly shown in Fig. 4. A passage-way 13 is located upon each side of the fire-box and passing rearward from the jacket 10 connects with the pipes 14, the latter merging into the pipe 30, and this pipe extends rearward beneath the tender, after which itmay open to the atmosphere or connect witha series of pipes for heating the train. Adamper IOO 16 is located in the pipe 30, so as to regulate the passagel therethrough, and is under thereontrol of the hand-rod 17, which extends within easy reach of the locomotive-driver. The 5 smoke-stack 18 is also provided with a damper 19, having a hand-rod 2O leading therefrom, so that either the-draft Ina'y be forced through the smoke-stack or through the jacket and pipe 30, from which it will be seen that. after t-he fire has gained proper headway and the locomotive is in motion the damper 19 may be closed and the" d'a'mp'er 16 opened, which will cause the heated products of combustion from the tubes to pass through the ja-cketlO, thereby heating the Water which may be contained within the tubes' 11?, which will bring about' a circulation' within said tubesand the receiving-tank' 1:2, can sing saidg water to Iiow' upward within the boiler', Where twi'll bey further' heated in the generation of steam.

In order that a further circulationfm-ay be had within the receiving-'tank 12' and tire tubes 11:, ther pipe 21',A which leads from the injector or pu-rnp, may pass-to` this tank'in heated by' the action of' the heated products' of combustion upon the tubes 11 and tank 12 before reaching the boiler, and when my im'- provement is properly' proportioned' relative to the capacity of the boiler thewa-ter before reaching; said boiler will be raised above the steamingepoint;

When the locomotive isi4 in motion or upon the starting of' the; lireI in the lire-bong, the damperlf? is opened and the-damperleiosed in order that" the proper draft may beh'ad.

By leading the smoke and cindersff'romthe smoke-chamber' rearward beneath the cars it is'- o'ftwiou'sy that ythe dis'comfortwhich hashere tof'orebeen imposed uponthe passengers will be oloviatedf,v and ift wilt therefore befpossible to usev double-deck cars for4 surface traffic,

and also the liability of forest fires., willl` bev reduced, since the cinders will becompelled causing'them to bel cooled below a pointwhere they could ignite surrounding obj ects before being admitted to the atmosphere, and this will also decrease the liability of a train bewhich case thfefeed-Water will' loe-stili further to pass through a considerable length of pipe,

com-ingredshould it be'derailedon'meet with other accident.

Having thus fully described my invention,

what I cla-im as new and useful is- 1. In combination with a boiler, a jacket ,inclosing the upper portion thereof, a coil of Apipe arranged Within the jacket, a feed-water pipe leading to thev coil, a pipe leading from the coil tothe injector' or pump, a jacket inclosi'ng the lower portion of the boiler, a series of pipes connected with the lower portion ithereoi, and. a receivingtarrk' tof which the opposite'ends of the pipes are connected, substanti-ally as' described.

2. In combination with a boiler, jackets inclosing the upperv and lowerportionstthereof, a series of" pipes connected tothe lower' part g ofthe' boil-fen., a tank lying onv the lower jacket @to which the pipesy are conn'ected,y a coiltofY pipes-arranged withinth'e jacket a feedsfwater pipe, pipe connection betweenthev coil andl injection-pump, and pipey connections forear'- lrying the exhaust from the jacke@ Substanzvtially as described.

r 3'. 'Iih'eherein-described' corn'bination of a Qboi-ler, a jacket incfosiing'the` upper' portion thereof, a jacket inclosing the lower portion thereof, a coil of pipe@ 51 arranged within the mst-named? jacket, ak feed-water pipeleading` toesaid coil,l a pipeleading from said coil to the injector or puinpg. a series ofpipes- 121 arrafngedf within theilower` jacket, said pipes being connectedg with the boiler; tank also located within said jacket with which the op- 2 posi-te ends of`v thefpipesfi are connected, pas'- sage-ways 1-3* leading from the lower jacket, pipesleading from saidi passagewvf'ays, and a pipel l'withwhich the fast-named pipes are connected and through which' the feed-Water i pipe passes; substantially' as-and. for the pur-A poses set forth.

In testimony whereof I have hereuntov af# fixed my' signaturein the presence' of twosub- @scribi'ng witnesses.

EDMUND INGRAHAM.

Witnessesf FL. MATTNER,

MARK Boretto'. 

